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Note G - Accumulated Other Comprehensive Income (Tables)
3 Months Ended
Mar. 31, 2015
Accumulated Other Comprehensive Income [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
   

Unrealized gains and losses on available-for-sale securities

 
   

(in thousands)

 
         

Balance at December 31, 2014, net of tax of $3,918

  $ 6,402  
         

Other comprehensive income before reclassifications, net of tax of $38

    62  
         

Balance at March 31, 2015, net of tax of $3,956

  $ 6,464